Ventilator



Dec. 2, 1930.

s. E. CIBULAS 1,783,405

VENTILATOR Filed Jan. 24, 1928 Patented Dec. 2, 1930 STEPHEN E. CIBULAS,OF BRIDGEPOBT, CONNECTICUT VENTILATOR' Application filed. January 24,1928. Serial No. 249,036.

This invention relates to ventilators, par ticularly of the type to beconnected to a room to be ventilated by a passage leading through theroof, but it is by no means limited to such specific use as it may beemployed for ventilating any desired enclosed space.

It has for an object to provide a simple and improved construction whichwill effectively ventilate the space desired without the use of movingelements.

It is also an object of the invention to provide a simple structurewhich will be snow and water proof and which will have a great dischargecapacity.

It is a further object of the invention to provide a ventilator whichwill perform its function of sucking or drawing air or fumes from thespace to be ventilated no matter from what angle or direction the windmay be blowing. It will also function to withdraw these fumes whetherthe wind blows or not.

With the foregoing and other objects in view, I have devised theconstruction illustrated in the accompanying drawing forming a part ofthis specification. In this drawa Fig. 1 is a partial side elevation anda partial vertical section of my improved ventilator, and with arrowsshowing its operation when the outside air or wind is moving downwardlywith respect to the ventilator, and

Fig. 2 is a vertical section similar to the section of Fig. 1 butindicating its action when the wind is moving upwardly.

The ventilator structure shown comprises.

an upright conduit 5 which is open at its upper end and connected to thespace to be ventilated, such as the room 6 of a building, and I haveshown the ventilator as mounted on the roof 7. Over the open upper endof the conduit 5 is mounted a hood 8 which may be of different shapes,but is preferably substantially conical as shown, and it is of a size sothat its lower edge extends some distance outwardly beyond the rim ofthe conduit 5. This hood is spaced a sufficient distance above the openend of the conduit to provide a clear passage for flow of air or othergases outwardly from the conduit.

Enclosing this space between the hood conduit are a plurality of uprightring vanes 9, 10, 11, 12 and 13 which are spaced from the hood andconduit andfrom each'other to orovide upright air or wind passagesoutside of and across the pa ssage between the hood and conduit. "In thespecification. and claims where it is desirable .to distinguish the ringvane 11 from the other vanes I have called this particular vane will benoted that edge of thehood 8 and is so as to form a passage be a ringbaffle. It

the vane 9 encloses the lower spaced therefrom tween them, while thesecond vanelOv encloses the lower edge of the vane 9 and is spaced fromthe first vane to form an upright passage. 13 aresimilar to vane 18encloses The vanes 12 and thevanes 9 and 10 but the the upper edge oftheconduit 5 and is spaced therefrom while the vane 12 encloses'the upperedge is spaced therefrom. Still 12 and 18 are spaced from to providehorizontal ,air

while the vane or baffle 11 is spaced outthem, wardly from the spacebetween the vanes 10 of the vane 13 and further, the vanes the vanes 9and 10 passages between and 12 and closes them, that is, it overlaps thelower edge of the vane 10 and the upper the edge of the vane 12. Itis tobe understood I have shown two vanes ble baffle 11 and the hood,

conduit, I am not number as oneor more of these vanes may be employeddepending on the size of the structure.

ernumber of va'nes we can By uslng a greatsecure a greater outflow orcapacity for discharge of air and gases without having any straightdirect passage to the conduit for entrance of snow or rain.

About theupper portion of the conduit is a a sweat gutter 14: forcollection of condensation andvwhich has openings 15 discharging to theroof. provideda damper 16 of Within the conduit may be any suitable typefor controlling the ventilating effect or vary the capacity of theconduit.

drawings it will From reference to the seen that no matter in whichdirection the wind is blowing its pas spaces between the vanes,

sage through the and between; these vanes and the hood and conduit, willdraw air and gases from the conduit. For example, as indicated by thearrows 17 in Fig. 1, downward flow of the air through the uprightpassages at the sides of the vanes will create a suction on the air andgases in the conduit 5 represented by the arrows 18 and will draw thesegases out, and will thus ventilate the space with which the conduit isin communication. Referring to Fig. 2, if the wind represented by arrows19 flows in the opposite direction or upwardly it will have the sameeffect on the gases in the conduit, and, of course, there will be thenatural draft through the ventilator if there is no Wind blowing. Thisconstruction of ventilator is very simple and has a large capacity, withlarge exit passages which are effectively controlled against entrance ofrain or snow. The vanes and hood may be supported on the conduit 5 insuitable spaced relation by means of supports or brackets 20. Thevarious elements may be secured to these supports or brackets by bolts,rivets or spot welding, and the number of support-s may be as founddesirable.

Having thus set forth the nature of my invention, what I claim is:

1. A ventilator comprising an upright conduit, a hood over the top ofthe conduit and spaced therefrom, a plurality of spaced upright ringvanes arranged with the inner one enclosing and extending above andbelow the upper end of the conduit and spaced therefrom and the nextouter vane enclosing and extending above and below the upper edge of thenext inner vane, a plurality of similar spaced upright ring vanesarranged with the inner one enclosing and extending above and below thelower edge of the hood and spaced therefrom and the next outer vaneenclosing and extending above and below the lower edge of the next in ervane, the upper vanes being flared outwardly at their upper ends and thelower vanes being flared outwardly at their lower ends, and an uprightouter ring baffle spaced from and enclosing the adjacent edges of theouter vanes.

2. A ventilator comprising an upright conduit, a hood over the top ofthe conduit and spaced therefrom, said hood being of suflicient diameterto extend outwardly beyond the periphery of the conduit, a plurality ofspaced upright ring vanes arranged with the inner one enclosing andextending above and below the upper end of the conduit and spacedtherefrom and the next outer vane enclosing and extending above andbelow the upper edge of the next inner vane, a plurality of similarspaced upright ring vanes arranged with the inner one enclosing andextending above and below the lower edge of the hood and spacedtherefrom and the next outer vane enclosing and extending STEPHEN E.CIBULAS.

